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Anchoring

Comparison between MAESTRO and I’D for a rescue using twin tensioned haul lines

By / Anchoring, Anchors, General Rigging, Horizontal Rigging, How-To Concepts, Mainline Systems and Operations, Minimalist Mountain and Climber Rescue, Petzl, Principles of Learning, RRG Gear Review, Twin Tension Rope System, Two (Twin) Tension Rope Systems, Two Rope Offsets, Two Tensioned Rope Rescue Systems / Leave a Comment

Excerpt from Gear In Use 2: Technical Rescue MAESTRO and I’D allow for efficient hauling, releasing the lock at any time, and a controlled lower of the load. The two devices have different ergonomics and different specifications (working load and efficiency). Hauling The MAESTRO’s efficiency enables the effective use of simple pulley systems. If a …

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The New SMC TerrAdaptor Space Station

By / Anchoring, Blog, Equipment, Portable Anchors, RRG Gear Review, TerrAdaptor / Leave a Comment

The TerrAdaptor™ is a great portable anchor system available for use in rescue, industrial, and wilderness environments. This system is the result of the combined years of experience in the design, engineering, and manufacturing of equipment by Seattle Manufacturing Corporation (SMC).  The TerrAdaptor system has been tested extensively in both lab and field environments. As …

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Powered Winches and Tripods

By / Anchoring, General Rigging, Portable Anchors / 4,175 Comments

Powered Winches and Tripods   We are seeing an interesting collision of techniques: Standard triangular pyramid tripods used for confined space rescue Asymmetrical multi-pods used for technical rope rescue and rope access Powered winches   Confined space operators have long been using symmetrical tripods with frame-mounted manual winches. These are normally set up over a …

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Rigging Multi-Point Anchors In Rope Rescue

By / Anchoring, Anchors, Blog / Leave a Comment

Multipoint Anchors Building an anchor system requires much practice and experience. In the end, simplicity and complexity are competency issues. Competency takes time to build and this doesn’t come without an investment of focus and purpose. Building an anchor system requires much practice and experience. When dealing with structures, chose anchor points that are part …

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Marginal Anchors | Anchor Considerations in Rope Rigging Systems Vol. 2

By / Anchoring, Blog, General Rigging, Pulley Systems, Team Competencies / Leave a Comment

Marginal anchors in theory create a force out of many, but how should we present this diverse and sometimes controversial concept of anchor construction?  This is an introduction to multiple back-ties and projecting the power of substantial anchors to a single focal point. Marginal anchors are generally considered independent anchors points that would not support …

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Building Anchors with Spring Loaded Cams- Pull Test Using Metolius Camming Units

By / Anchoring, Anchors, Blog, Horizontal Rigging / Leave a Comment

Building Anchors with Spring Loaded Cams Pull Test Using Metolius Camming Units So we did some back yard testing and while what we found wasn’t particularly astonishing, it was never the less, very interesting. We purposely used some marginal placements with our Metolius camming units.  Some more marginal than others.  We found a range from …

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Bombproof Anchors | Anchor Considerations in Rope Rescue and Rigging

By / Anchoring, Anchors, General Rigging, Team Competencies / Leave a Comment

Excerpt from Anchor Considerations in Rope Rigging Systems Vol. 2 Segment 2 What is a bombproof anchor and what are some methods of rigging anchors? Bombproof anchors can hold it all… but does this principle apply in high directional anchors such as tripods, “A” frames, and gin poles? Questions of this nature are addressed in …

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Staggered Anchors: Progression from 3:1 to 9:1 Simple Mechanical Advantage

By / Anchoring, Personal Competencies, Pulley Systems, Pulleys & Mechanical Advantage / 104 Comments

  Excerpt from Knots & Pulleys in Rope Rigging Systems Vol. 1 Segment 7 In continuing with the discussion about pulley systems this video reviews the 5 rules of simple pulley systems before delving into the principles of a 3:1 MA, mechanical advantage, and compounding a 3:1 system to a 9:1 using staggered anchors for …

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